Cheistophee c



(No Model.)

r 0. 0. TRACY.

MACHINE FOR MAKING LEAD PIPE. No. 340,465. Patented Apr. 20, 1886. v

a z o How o --oq1 1%; a o 0 %M WITNESSES: 0 g & INVBNTOR:

I V a ii i? @JW d g 7 ATTORNEYS.

are opposite the die.

INITED STATES PATENT Grrios.

CHRISTOPHER o. TRACY, OF BROOKLYN, ASSIGNOR TO THE COLWELL LEAD COMPANY,OF NEW YORK, Y.

MACHINE FOR MAKING LEAD PIPE. a

SPECIFICATION forming part of Letters Patent No. 340,465, dated April20, 1886.

Application filed December 28, 1885. Serial N0. 186.s76. (No model.)

i To aZZ whom at may concern:

Be itknown that I, CHRISTOPHER G. TRACY,

of Brooklyn, in the county of Kings and State of New York, have inventeda new and Improved Lead-Pipe Machine, of which the following is a full,clear, and exact description.

The lead-pipe machines in use, and to which my invention is applicable,comprise a hydraulic press, a die-holder,and receiving-reservoir.

IO In the receiving-reservoir is placed a mandrel which forms the boreof the pipe.

Difficulty is now experienced in removing the mandrel from thereceiving-reservoir and replacing it with a larger or smaller 0ne,whichmust be done to form pipes of diflerent thicknesses or ofdifi'erentsized bore.

The object of my invention is to overcome this difficulty; and to thisend my invention consists, principally, in making the receivingreservoirmovable, so that it may be moved to and from the point of alignment withthe die-holder, which not only facilitates the removal of the mandrelfrom the receiving-reservoir, but also the pouring of the molten metalinto the receiving-reservoir from which the pipe is to be formed.

My invention also consists of means for shifting the receiving-reservoirand guideways or tracks on which the receivingreservoir moves;

0 and the invention further consists of the construction, arrangement,and combination of parts, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification,

in which similar letters of reference indicate corresponding parts inall the figures.

Figure 1 is a side elevation of the lead-pipe machine having myimprovements applied thereto, two of the pillars being broken away Fig.2 is a sectional elevation taken on the line 00 x of Fig. ,3; and Fig.

3 is a sectional plan view taken on line y y of Fig. 2, a portion of thereceiving-reservoir being broken away.

A represents the hydraulic press, and B the piston or plunger thereof.Rising from the top of the press are four pillars or columns,O, to theupper ends of which is firmly secured the head-plate D.

In line with the aperture d of the plate D is secured,to the undersurface of the plate,a dieholder, E.

F represents the receiving-reservoir,which is made movable to and fromthe point immediately below the die-holder, as indicated in Figs. 1 and2. The receiving-reservoir in this instance is mounted upon the base orcarriage F, which forms the bottom of the receiving-reservoir and runsupon or between ways or flanges G G, which insure the proper 6oregistering of the receivingreservoir with the die-holder when theformer is moved into pos'ition below the die-holder for forming thepipe. The flanges or ways in this instance are formed or secured uponthe intermediate plate or table, H, secured upon the upper end of theplunger B of the press. This intermediate plate, H, will be used when myinvention is to be applied to machines already in use; i but whenmachines are to be constructed to receive my invention the plate ortable H may be omitted,and the flanges G formed or secured directly uponor to the upper end ofthe plunger.

The receiving-reservoir may be moved from the position shown in Fig.1 tothat shown in Figs. 2 and 3 by hand, or by separate levers, or by anyother suitable means; but for shifting the receiving-reservoir I preferto use a capstan, I, provided at its ends with cranks a a, which areconnected by the conmeeting-rods b b with the base-plate or carriage F,so that by turning the capstan in its bearings, by means of a lever orotherwise, the cranks and connecting-rods will act to draw the'receivingreservoir out from under the die-holder or force -it back in line withthe die-holder,according to the direction in which the capstan isturned. The capstan I is journaled in journal-blocks 0, held in theframe d d, secured upon the upper surface of the 0 plate H. Thejournal-blocks c are made adj ustable in the frames (Z by means ofopposite set-screws,c e,to take up the wear, and so that the capstan Imay be moved slightly in the frames cl,in Order that accurateregistration of the receiving-reservoir and die-holder may always besecured. When the capstan is turned so that the cranks a occupy theposition shown in Fig. 1, they are stopped in that position by smallprojections or blocks f, which are of such height that the connectionbetween the cranks and connecting-rods stand exactly in line with theaxis of the capstan and the receiving-reservoir connections, thuslocking the die in proper position under the die-holder.

In the receiving-reservoir F is secured, in the ordinary manner, themandrel J, which penetrates the die-holder and forms the bore of thepipe when the receiving-reservoir is elevated by the hydraulic press.\Vhen the mandrel J is to be removed from the receiving-reservoir, and alarger or smaller one put in its place, the capstan Iwill be operatedand the receiving-reservoir moved out from under the die-holder to theposition shown in Figs. 2 and 3, in which position the mandrel may beeasily reached and removed without interference with the dieholder, andanother mandrel as easily put in place.

In operation, the proper sized mandrel being in place in the receivingreservoir, the receivingreservoir will be filled with molten lead andthen moved by operating the capstan to a point immediately underneaththe dieholder. Then water will be admitted to the press A, and thereceiving-reservoir lifted in contact with and to inclose the dieholder. The entrance of the die-holder into the receivingreservoirforces the molten metal therein through the aperture g of the die-holderand forms it around the mandrel J into pipe.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The receiving-reservoir F, placed upon the ways G, in combinationwith the capstan I, having cranks connected by suitable conmeeting-rodsto the receiving-reservoir, substantially as described.

2. The combination, with the piston of the press, of the intermediateplate,H,and receiving-reservoir F, placed upon or in the ways G, formedor secured upon the plate H, substantially as described.

3. The capstan I, held in adjustable bearings and connected with thereceiving-reservoir F, for moving and adjusting the same, substantiallyas described.

4. The combination, with the movable receiving-reservoir F and capstanI, connected by cranks a and rods b with the receivingreservoir,of stopsf,arranged to stop the cranks aand rods bin line with the axis of thecap stan, as and for the purposes set forth.

CHRISTOPHER G. TRACY.

\Vitnesses:

GEORGE L. KNOX. ROBERT E. CAREY.

